struct typedef generates recursive alias

[rcorre]

The following header:

typedef struct Foo Foo;
struct Foo { int i; };

Will cause dstep to produce:

extern (C):

alias Foo Foo;

struct Foo
{
    int i;
}

Where alias Foo Foo is a syntax error (recursive alias definition).

I was seeing this a lot while trying to create bindings for Chipmunk2D
(example)